Home / 20,565.68-28,377.57-11,612.99

Finding the Fourth Proportional to 20,565.68, 28,377.57 and 11,612.99

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Solution

The fourth proportional to 20,565.68, 28,377.57 and 11,612.99 is: 16,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.68 : 28,377.57 = 11,612.99 : x
  2. Step 2: Convert to fraction form
    20,565.68/28,377.57 = 11,612.99/x
  3. Step 3: Cross multiply
    20,565.68x = 28,377.57 × 11,612.99
  4. Step 4: Simplify right side
    20,565.68x = 329,548,436.63
  5. Step 5: Solve for x
    x = 329,548,436.63/20,565.68
  6. Step 6: Final answer
    x = 16,024.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.